Many poorly coded but popular Python modules like to write lots of junk directly to stdout. This is a big problem when piping from vspipe to another application and will break everything. On “not Windows” it was possible to use named pipes to get around this however on Windows you were stuck until now. To create a named pipe for output simply do vspipe script.vpy "\\.\pipe\<your pipe name>" and use the same “filename” as input for FFmpeg or recent x265 builds. A patch has also been submitted to x264 but hasn’t been accepted yet.

As mentioned in the previous posts every Python version starting with 3.12 is now supported in the Windows installer. This of course also includes Python 3.13 and 3.14 and will help people using poorly coded but popular Python modules that are slow to get support for for new Python versions.